We're stretching this analogy to breaking point here, but...

Imagine you're running this French cum doughnut factory but you only serve local customers. One day a British tourist arrives - "oh I say how delightful!" - and buys, perfectly legally, a cum filled French doughnut. They then take it back to the UK for consumption.

The equivalent action to this would be to hop on a ferry to Calais, use a French internet connection to load up a page of 4chan on your browser, then hop back across the channel to read the page you've loaded back in Dover.

Which from an OSA point of view is actually fine. If a bit unlikely.

Imagine if we had an internet where you couldn't read a newspaper online from Peru because the proprietor didn't purchase any export license. Madness.

We don't have "export licences" for websites, but that's not because it's philosophically absurd; we have lots of other restrictions on ways things can be broadcast or disseminated into the country. Websites which break UK laws (such as hosting child pornography or selling illegal goods) are frequently blocked to all UK users. You can view the OSA as an unacceptable overreach, if that's your view- but it's not a fundamental departure from what we already do and have done for a long time.